November 10, 2008 AT 11:31 pm

DutchTronix ScopeClockx

Do you have an oscilloscope? Do you have an Arduino? Do you need a clock to impress your houseguests and/or fellow engineers? If you answered “YES” then you must build Jan’s Scope Clock Shield TODAY!
For super extra bonus points, combine it with a Pong Clock.

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2 Comments

  1. The scope-shot looks like a raster scan display. Is the Scope Clock Shield generating pixels in scanline order, or is it generating vectors and your digital scope is rasterizing it?

  2. The image is generated using vectors but there is a separate character generator which uses a small raster scan. The numbers on the dial are vector generated. The characters in the name field and the numeric field are generated with the raster scan.
    Each dot in the character generator actually occupies 3 pixels (“fat pixels”). This solution saves a lot of flash table space for the character generator; important since the Atmega168 AVR flash is completely full.

    All source code is available on http://www.dutchtronix.com/ScopeClock.htm.

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